Properties of Polycrystalline BaTi2O5 Substituted with MgO Prepared by a Floating Zone Method

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MgO substituted polycrystalline BaTi2O5 (BT2), Ba1-xMgxTi2O5 (BMT2), was prepared by a floating zone method (FZ-melting). The dielectric property of BMT2 was investigated bySubscript text an AC impedance method. At x = 0.005 MgO, the permittivity (r) showed the maximum value of 5800 for FZ-melted specimens. The Curie temperature (Tc) decreased with increasing x and the permittivity showed a flat peak at x ≥ 0.03. Second phases of BaTiO3, Ba6Ti17O40 and Ba4MgTi11O27 were identified in polycrystalline BMT2. BaTiO3 and Ba6Ti17O40 could be due to the decomposition of BT2 at high temperatures.

Info:

Periodical:

Advanced Materials Research (Volumes 311-313)

Edited by:

Zhongning Guo

Pages:

1144-1147

DOI:

10.4028/www.scientific.net/AMR.311-313.1144

Citation:

X. Y. Yue et al., "Properties of Polycrystalline BaTi2O5 Substituted with MgO Prepared by a Floating Zone Method", Advanced Materials Research, Vols. 311-313, pp. 1144-1147, 2011

Online since:

August 2011

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$35.00

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